Problem with displaying list of articles in a category

I may just be totally missing something here, but when I select a specific category on my website (the url ends in /category/category-name), it doesn’t show the articles in the category.
I have tried using listforms and if statements, and nothing is working.

Slightly related question: Do the article list pages use the “default” page automatically? If so, how do I change this?

Re: Problem with displaying list of articles in a category

There is an article tag, the article form allows for the articles’ data to be displayed, the categories exist, non of them are spelled incorrectly, they are all set to live, and there are no expiry dates on my articles.
However, I don’t know what you meant by “restrict the selection of data”, but I have adjusted the organisation.

My problem was mainly that the default page I was using wasn’t the one I should have been using for the categories and the section.

..And now I have another problem of not being able to display the articles as a list for the categories.